What should a simple cross-promotion swap agreement spell out before anyone hits send?

Why an email thread beats a handshake

Nearly every swap dispute comes from two people remembering the same conversation differently. One thought the mention would run twice, the other thought once. One expected a link to a signup page, the other sent readers to a homepage. None of this needs a contract, but it does need a written summary both sides have agreed to, and a single email thread that both parties can search is the simplest way to keep it.

The habit to build is a short recap message after any call or chat where terms were discussed. List what each side will do, when, and where, and ask the partner to reply confirming or correcting. This takes five minutes, it feels slightly formal the first time, and it saves hours of awkward back-and-forth later. Experienced swap partners will appreciate it, and inexperienced ones will learn from it. Related: Finding Fair Swap Partners

Keep reading: Why Cross Promotion Works, Finding Fair Swap Partners, Audience Fit Over Audience Size. See how CrossPromoly helps you cross-promotion swap matcher for podcasts and newsletters.

The five terms that matter most

First, the placement: exactly what each side gets, described in plain language. A blurb of roughly sixty words in the main body, a host-read of about forty-five seconds in the first ten minutes, a full feed drop. Second, the date: the specific issue or episode on each side, not just a week. Third, the creative: who writes the copy, whether the host can edit it, and a deadline for delivering it. These three prevent the large majority of misunderstandings. Related: How do you write a newsletter swap blurb that readers actually click on?

Fourth, the links: the exact destination each side will use, and whether either party needs a custom link for tracking. Fifth, the follow-through: how each side will confirm the placement went live, and whether either party wants a brief results exchange afterward. Anything beyond these five is optional. If a partner wants to add exclusivity windows or approval rights, that is a sign the arrangement is closer to a sponsorship and should be handled with more care. Related: Tracking Swap Results

Fairness terms for unequal partners

When the two audiences differ noticeably in size or engagement, the agreement should say how the difference is being balanced, so nobody feels quietly shortchanged later. Common adjustments include the smaller side running the mention twice, placing it higher in the issue, adding a social post, or including a line in their welcome email. Write down the adjustment explicitly rather than leaving it as an unstated favor.

It also helps to agree on what happens if one side's placement fails for a reason outside their control, such as a delivery problem on send day. A simple line such as 'if either placement does not go out as planned, the other side is not obligated until it is rescheduled' is enough. This is not about legal enforcement; it is about making sure both people have the same expectations when something goes wrong.

What to leave out, and how to keep it light

Do not turn a swap into a negotiation over hypotheticals. Clauses about liability, intellectual property, or indemnity are unnecessary for a recommendation between two independent creators, and introducing them signals distrust. Similarly, avoid demanding performance guarantees; nobody can promise a number of subscribers, and asking for one just tells the partner you do not understand how swaps work. Related: Running a Swap That Delivers

A good test is whether the whole agreement fits comfortably in one email a busy person can read on a phone. If you find yourself writing a document with headings, you have either overcomplicated a simple swap or you are actually arranging something closer to a paid partnership. In that case, treat it as one, with a proper written agreement, and be honest with yourself about which it is.